Lithium battery bms protection board with smoke sensing

Abstract

This utility model discloses a lithium battery BMS protection board with smoke detection, relating to the technical field of lithium battery BMS protection boards. It includes a protection board and a smoke detection module fixedly mounted on the surface of the protection board. An annular tube is fitted around the outside of the protection board. An air inlet pipe is connected to the wall of the annular tube, and a piston tube is connected to the opening of the air inlet pipe. An air outlet pipe is connected to the wall of the piston tube and faces the smoke detection module. A piston slides through the inner wall of the piston tube, and a crossbar is fixed to the end of the piston. The crossbar wall has a reciprocating drive mechanism for driving the piston to move back and forth. The annular tube wall is connected to spaced-apart suction pipes. This utility model, through the reciprocating movement of the piston within the piston tube, allows multiple suction pipes to promptly draw in smoke generated outside the protection board and bring it into contact with the smoke detection module, providing immediate protection when the lithium battery malfunctions, thus improving the effectiveness of the protection board.

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